Former Charlton Athletic and Gillingham defender Barry Fuller admits it was “disappointing and frustrating” to see AFC Wimbledon lose their fourth game of the League One season, a 2-0 defeat to Portsmouth, on Saturday.

The Dons played well for the first 35 minutes, only to have a dubious penalty awarded against them which Pompey skipper Brett Pitman stepped up to convert.

The shortly after half-time, a mistake by teenage defender Anthony Hartigan, on as a substitute after a serious head injury to Callum Kennedy, allowed Pompey's Conor Chaplin to make it 2-0.

And Fuller admits things haven't been going Wimbledon's way as of late, but insists the team need to “dig in” to turn their fortunes around.